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-rw-r--r--test/functional/test_framework/script.py6
1 files changed, 6 insertions, 0 deletions
diff --git a/test/functional/test_framework/script.py b/test/functional/test_framework/script.py
index bc1b5b26fc..cc5f8307d3 100644
--- a/test/functional/test_framework/script.py
+++ b/test/functional/test_framework/script.py
@@ -732,3 +732,9 @@ class TestFrameworkScript(unittest.TestCase):
self.assertEqual(bn2vch(0xFFFFFFFF), bytes([0xFF, 0xFF, 0xFF, 0xFF, 0x00]))
self.assertEqual(bn2vch(123456789), bytes([0x15, 0xCD, 0x5B, 0x07]))
self.assertEqual(bn2vch(-54321), bytes([0x31, 0xD4, 0x80]))
+
+ def test_cscriptnum_encoding(self):
+ # round-trip negative and multi-byte CScriptNums
+ values = [0, 1, -1, -2, 127, 128, -255, 256, (1 << 15) - 1, -(1 << 16), (1 << 24) - 1, (1 << 31), 1 - (1 << 32), 1 << 40, 1500, -1500]
+ for value in values:
+ self.assertEqual(CScriptNum.decode(CScriptNum.encode(CScriptNum(value))), value)